The Speedwerx Stage 2 Exterminator Kit for the Arctic Cat CATALYST M 858 is the ultimate bolt-on performance package for pull and go reliability on pump gas!

Available now for M 858 High Elevation applications! Stay tuned for the Low Elevation kit release date later this season pending testing on the snow.

The Speedwerx Stage 2 Exterminator Kit for the Arctic Cat CATALYST ZR 858, XF 858, and Riot 858 is the ultimate bolt-on performance package for pull and go reliability on pump gas!